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Asked by Gurlivleen Singh on May 26, 2024

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In the lowest energy conformation of the compound below, how many alkyl substituents are equatorial? In the lowest energy conformation of the compound below, how many alkyl substituents are equatorial? A) 0 B) 1 C) 2 D) 3 E) 6

A) 0
B) 1
C) 2
D) 3
E) 6

Alkyl Substituents

Alkyl substituents are groups of atoms, derived from alkanes, that are attached to a molecule, replacing a hydrogen atom.

Equatorial

Refers to the position around a cyclic molecule where substituents are located in the plane or nearly in the plane of the ring, reducing steric hindrance.

Energy Conformation

The spatial arrangement of atoms in a molecule that relates to its energy level, often describing structures that are energetically favorable or unfavorable.

  • Examine the stability and location of substituents in chair conformations of substituted cyclohexanes, noting contrasts and comparisons.
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NS
Natalie SmallsMay 28, 2024
Final Answer :
C
Explanation :
In the lowest energy conformation, the bulky tert-butyl group will likely be equatorial to minimize steric interactions. Additionally, one of the methyl groups on the cyclohexane ring must also be equatorial to alleviate steric strain. Therefore, there are two equatorial alkyl substituents (the tert-butyl group and one methyl group) in the lowest energy conformation.

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